EP1993879B1 - Procédé et dispositif de commande d'un agencement de circuit au moyen d'actionneurs électriques - Google Patents

Procédé et dispositif de commande d'un agencement de circuit au moyen d'actionneurs électriques Download PDF

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Publication number
EP1993879B1
EP1993879B1 EP07712276A EP07712276A EP1993879B1 EP 1993879 B1 EP1993879 B1 EP 1993879B1 EP 07712276 A EP07712276 A EP 07712276A EP 07712276 A EP07712276 A EP 07712276A EP 1993879 B1 EP1993879 B1 EP 1993879B1
Authority
EP
European Patent Office
Prior art keywords
current
switching
actuation method
requests
available
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Not-in-force
Application number
EP07712276A
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German (de)
English (en)
Other versions
EP1993879A1 (fr
Inventor
Robert Ingenbleek
Markus Ulbricht
Mario Steinborn
Armin Brentel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ZF Friedrichshafen AG
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ZF Friedrichshafen AG
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Publication of EP1993879A1 publication Critical patent/EP1993879A1/fr
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Publication of EP1993879B1 publication Critical patent/EP1993879B1/fr
Not-in-force legal-status Critical Current
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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J1/00—Circuit arrangements for dc mains or dc distribution networks
    • H02J1/14—Balancing the load in a network
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
    • H02J13/00002—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by monitoring
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S10/00—Systems supporting electrical power generation, transmission or distribution
    • Y04S10/30—State monitoring, e.g. fault, temperature monitoring, insulator monitoring, corona discharge
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/19—Gearing
    • Y10T74/19219—Interchangeably locked
    • Y10T74/19251—Control mechanism

Definitions

  • the invention relates to a method for controlling a circuit arrangement with electrical actuators according to the preamble of patent claim 1
  • valves In motor vehicles electrically operated actuators, such as valves, are used in particular for control and control tasks in hydraulic circuits. Essentially, two types are distinguished. In commonly used pilot operated valves, a magnet in a pilot system acts on a removal hole which compensates for a pressure differential between the pressurized sides of a sealing element, the sealing element on the valve seat being actuated by the pressure medium itself. Solenoid valves of this type have the advantage that they can control large flow rates at high pressures with relatively little force and correspondingly low power consumption. However, since they work according to the differential pressure principle, they always require a certain minimum operating pressure.
  • Direct-acting valves do not require a minimum operating or differential pressure for their switching function, so their operating range starts at zero bar and reaches up to a certain maximum operating pressure. Such valves can be made very compact, are suitable for almost any mounting position and are relatively inexpensive.
  • solenoid valves of this type the magnetic force is used directly to open or close the valve seat.
  • the valve seat is usually closed by spring force and the static pressure of the medium when de-energized. If the magnet or the magnetic coil with electrical Voltage applied, lifts an armature against these forces from the valve seat and the valve opens.
  • the maximum operating pressure and the volume flow depend directly on the magnetic force. Direct-acting valves therefore typically consume more power than pilot-operated valves. This can result in an unacceptably high current load in electrical circuits with limited power supply during operation.
  • a proportional pressure control valve for controlling a clutch in an automatic motor vehicle transmission known that is designed as a direct control valve.
  • the direct control valve has a proportional solenoid, which is connected via an anchor rod with a piston.
  • the piston is pressed by spring force in an initial state against a valve seat, whereby the valve is closed.
  • By a suitable energization of the coil of the magnet of the armature and thus the anchor rod is moved with the piston against the spring force, whereby the piston lifts off the valve seat and an inlet opening for the medium (hydraulic oil) is released.
  • the inlet is fully open, the magnet armature is seated on a spacer in a holding position and is held in this position via a corresponding current supply.
  • the coil current taking into account the hydraulic pressure against the piston, this holding function can be adjusted and can be used for pressure control on a clutch cylinder.
  • a method for controlling proportional solenoid in the direct control valve construction as in DE 199 04 902 A1 described, or in a pilot valve construction, as shown in DE 199 04 901 A1 can be seen, known, wherein in each case a holding position is realized.
  • means are provided which detect the movements of the armature on the basis of induced voltages, with repercussions on the coil current. These repercussions are directly related to the hold function and can be exploited to provide a controlled transition between a holding area (pressure range in the holding position) and a control range (pressure range outside the holding position) of the valve to control.
  • control arrangement for controlling the drive current of a proportional directional control valve in a hydraulic control system known.
  • the control arrangement assumes nonlinearities in the hydraulic path that are not adequately detected by conventional state observers, and uses digitally acquired sensor values from which, after an iteration process, estimated signals are determined in a number of integration steps, which are then provided for further processing of the control arrangement become.
  • the method is suitable for both pilot operated valve systems and directly controlled valve systems. In the case of directly controlled valves, for example, a measured variable derived from the measured coil current can be used as the input variable for the control loop.
  • a disadvantage of the known methods and devices for controlling proportional magnets is that they regulate the control of individual proportional valves.
  • the proportional valves are considered only for themselves. The effects which the relatively high power requirement of, in particular, directly controlled valves in a circuit arrangement with a number of different consumers can have remain largely unconsidered. This can affect the reliability of the system in question in a circuit arrangement with a limited total available current, as is common in automotive power grids.
  • the DE 198 57 916 A1 discloses a method and a device for controlling electrical consumers in a vehicle, wherein a control structure is provided for the consumers, which consists of at least an upper level consumer management that collects consumer demand requests individually or as a sum.
  • the control structure further comprises a coordinator for the on-board electrical system and its power generation, which receives the sum of the requested electrical consumer power from the consumer management.
  • the coordinator of the on-board network adjusts the requested electrical power through orders to on-board network components and the consumer management reduces the generated electrical power by controlling the consumers.
  • the invention has for its object to provide a method and an apparatus for driving a circuit arrangement, which at a comparatively increased power consumption of electrical actuators or consumers, such as direct-operated valves, reliably avoid exceeding a given permissible current load.
  • the invention is based on the finding that an exceeding of an allowable current load in the circuit arrangement can be avoided by means of a monitoring function which, if necessary, processes the switching requirements sequentially after a test.
  • the invention is based on a method for controlling a circuit arrangement with directly controlled control valves of an electro-hydraulic, electro-pneumatic, electromagnetic or electromotive transmission control of a motor vehicle according to the patent claims.
  • the current monitoring function it is advantageously made possible, for example in an electrohydraulic transmission control, to use directly controlled valves with an increased power requirement while at the same time ensuring compliance with a maximum current load of the transmission control. This is achieved by capturing shift requests and subjecting them to a priority check. If the danger of exceeding a previously determined available total current is given, positively tested switching requirements are switched on the basis of their priority. On the other hand, negatively tested requirements are initially blocked until their processing is possible and then switched.
  • Ventilbestromungen depending on their respective function as a switching element, optionally in an active switching phase, and the type of switching request, with the type of switching request at least between the functions switching, switching and confirming can be distinguished as doing different power loads are incurred.
  • priority such as safety-related, valve actuations are always carried out immediately, while ensuring an effective sequence of switching operations.
  • the available total current is determined from a current total current, predetermined limit currents and predetermined current reservations for switching elements still to be switched, it also being possible for the current total current to be determined from a permanent current load of the circuit arrangement and a current current demand of active switching elements and that in the case of the limit currents a distinction is made between continuous current loads and short-term current loads.
  • the power requirement of the active switching elements and / or the limit currents for continuous and / or short-term current loads is determined using a learning algorithm that is derived from past drives or derived.
  • a maximum permissible continuous current and a short-term available Maximum current can be determined. Since it is usually harmless to allow short-term overloads on the corresponding fuses of electrical loads, it is advantageous not to block beyond the permanent current load short-time switching operations. For this purpose, it makes sense to consider an expected duration of a particular activation when testing the switching requirements.
  • Fig. 1 a simplified block diagram of a known electronic transmission control of a motor vehicle shown.
  • a central transmission control unit 1 with a connected hydraulic circuit 5 with (not shown) directly controlled electromagnetic control valves.
  • the transmission control unit 1 communicates with a motor control and signal detection unit 2, via which data relating to a driver's request and / or a driving situation can be detected.
  • the transmission control unit 1 also has a processor unit 3 according to the invention, in which electrical current and voltage data can be detected time-resolved and can be processed by means of suitable software, thereby providing a current monitoring function according to the invention.
  • a processor unit 3 according to the invention, in which electrical current and voltage data can be detected time-resolved and can be processed by means of suitable software, thereby providing a current monitoring function according to the invention.
  • the switching elements of the hydraulic circuit 5 can be controlled, which in turn drive a transmission and / or clutch assembly 4.
  • a driver's request is converted, for example, by a selector lever position, a driving program switch, a kick-down switch and / or a throttle position in the transmission control unit 1 in signals, for example, gear selection, lock-up or clutch operation.
  • the associated control valves are controlled in the hydraulic circuit 5, which actuate the corresponding switching valves.
  • limit currents I_max_technisch_kurz are determined for short-term and I_max_technisch_dauer for continuous loads on the associated fuses on the basis of the fuse data and the previous control.
  • the differences between the "current of the consumers” and the limit currents result in a free “available current for additional consumers” for short - term or continuous loads for permanent loads.
  • requested Ventilbestromungen be classified according to the type and function of the respective switching element in the hydraulic circuit, after a current switching phase and the nature of the switching requirements, such as switching, if necessary, with counter-pulse, turn on or confirm.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Transmission Device (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Magnetically Actuated Valves (AREA)

Claims (10)

  1. Procédé de commande d'un arrangement de commutation avec des vannes pilote à commande directe d'une commande de transmission électro-hydraulique ou électropneumatique d'un véhicule automobile, caractérisé en ce qu'il est prévu une fonction de surveillance du courant destinée à limiter une charge de courant dans l'arrangement de commutation, lequel comprend au moins les étapes suivantes :
    a) détermination d'un courant total disponible dans l'arrangement de commutation à un instant donné,
    b) détection de demandes de commutation d'éléments de commutation, une demande de commutation en vue de la mise sous tension de l'une des vannes pilote étant accompagnée d'une priorité qui dépend de sa fonction en tant qu'élément de commutation et de la nature de la demande de commutation,
    c) comparaison du besoin en courant résultant des demandes de commutation avec le courant total disponible,
    d) contrôle des demandes de commutation d'après des priorités prédéfinies et
    e) commutation séquentielle d'éléments de commutation conformément au contrôle des priorités lorsque les demandes de commutation donneraient lieu à un dépassement du courant total disponible et
    f) commutation directe des éléments de commutation lorsque les demandes de commutation ne donneraient pas lieu à un dépassement du courant total disponible.
  2. Procédé de commande selon la revendication 1, caractérisé en ce que le courant total disponible est déterminé à partir d'un courant total actuel, de courants limites prédéfinis et de réservations de courant prédéterminées pour les éléments de commutation qu'il faut encore commuter.
  3. Procédé de commande selon la revendication 2, caractérisé en ce que le courant total actuel est déterminé à partir d'une charge en courant permanente de l'arrangement de commutation et d'un besoin en courant actuel des éléments de commutation actifs.
  4. Procédé de commande selon la revendication 2, caractérisé en ce que pour les courants limites, la différence est faite entre les charges en courant permanentes et les charges en courant de courte durée.
  5. Procédé de commande selon au moins l'une des revendications 1 à 4, caractérisé en ce qu'un courant permanent maximale autorisé et un courant maximum disponible pendant une courte durée sont déterminés à partir du courant total disponible déterminé.
  6. Procédé de commande selon au moins l'une des revendications 1 à 5, caractérisé en ce qu'une durée attendue d'une commande respective est prise en compte lors du contrôle des demandes de commutation.
  7. Procédé de commande selon au moins l'une des revendications 1 à 6, caractérisé en ce qu'une demande de commutation en vue de la mise sous tension d'une vanne est accompagnée d'une priorité dépendante d'une phase de commutation active.
  8. Procédé de commande selon au moins l'une des revendications 1 à 7, caractérisé en ce que concernant la nature de la demande de commutation, la différence est faite au moins entre les fonctions mise sous tension, permutation et confirmation.
  9. Procédé de commande selon au moins l'une des revendications 1 à 8, caractérisé en ce que des données caractéristiques des fusibles électriques respectifs sont utilisées pour déterminer le besoin en courant des éléments de commutation actifs et/ou pour déterminer les courants limites pour des charges en courant permanentes et/ou de courte durée.
  10. Procédé de commande selon au moins l'une des revendications 1 à 9, caractérisé en ce que le besoin en courant des éléments de commutation actifs et/ou les courants limites pour des charges en courant permanentes et/ou de courte durée sont déterminés à l'aide d'un algorithme d'apprentissage qui est dérivé des commandes précédentes.
EP07712276A 2006-03-15 2007-02-21 Procédé et dispositif de commande d'un agencement de circuit au moyen d'actionneurs électriques Not-in-force EP1993879B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006011805A DE102006011805A1 (de) 2006-03-15 2006-03-15 Verfahren und Vorrichtung zur Ansteuerung einer Schaltungsanordnung mit elektrischen Stellgliedern
PCT/EP2007/051677 WO2007104630A1 (fr) 2006-03-15 2007-02-21 Procédé et dispositif de commande d'un agencement de circuit au moyen d'actionneurs électriques

Publications (2)

Publication Number Publication Date
EP1993879A1 EP1993879A1 (fr) 2008-11-26
EP1993879B1 true EP1993879B1 (fr) 2011-07-27

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Application Number Title Priority Date Filing Date
EP07712276A Not-in-force EP1993879B1 (fr) 2006-03-15 2007-02-21 Procédé et dispositif de commande d'un agencement de circuit au moyen d'actionneurs électriques

Country Status (6)

Country Link
US (1) US8244440B2 (fr)
EP (1) EP1993879B1 (fr)
JP (1) JP2009529640A (fr)
AT (1) ATE517786T1 (fr)
DE (1) DE102006011805A1 (fr)
WO (1) WO2007104630A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
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DE102006011805A1 (de) * 2006-03-15 2007-10-04 Zf Friedrichshafen Ag Verfahren und Vorrichtung zur Ansteuerung einer Schaltungsanordnung mit elektrischen Stellgliedern
WO2013052540A2 (fr) * 2011-10-04 2013-04-11 Parker-Hannifin Corporation Procédé et système permettant de commander des actionneurs électriques

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Also Published As

Publication number Publication date
JP2009529640A (ja) 2009-08-20
US8244440B2 (en) 2012-08-14
US20090093935A1 (en) 2009-04-09
WO2007104630A1 (fr) 2007-09-20
EP1993879A1 (fr) 2008-11-26
DE102006011805A1 (de) 2007-10-04
ATE517786T1 (de) 2011-08-15

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